Union54
Union54 offers a developer‑first REST API to issue virtual and physical debit cards. It provides BIN sponsorship, card authorization, and fulfillment in a single platform, enabling brands to launch card programs quickly. The service supports issuing both virtual and physical cards, with branding customization, card production, and multi‑currency readiness (additional currencies coming soon). It provides a sandbox for testing, clear webhooks, and built‑in controls such as spend limits and team permissions, so teams can move from sandbox to production in weeks.
Hiring overview
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